Marshal: Worker pierced pipe before blast

By THE ASSOCIATED PRESS

Posted: November 26, 2012 at 5:11 a.m.

JESSICA HILL
Credit: AP
People walk through debris Saturday about a block from the site of a Friday evening explosion in Springfield, Mass.

A natural-gas explosion that injured 18 people and damaged 42 buildings in Springfield’s entertainment district was blamed Sunday on a utility worker who accidentally punctured a high-pressure pipeline while looking for a leak.